JIT

gh-148925: Add safe PyUnstable_* APIs for call-stack iteration #6601

Job	Run time
x86_64-unknown-linux-gnu/gcc (Release)	9m 9s
aarch64-unknown-linux-gnu/gcc (Debug)	9m 50s
Free-Threaded (Debug)	4m 3s
aarch64-pc-windows-msvc/msvc (Release)	18m 6s
x86_64-pc-windows-msvc/msvc (Release)	17m 5s
x86_64-unknown-linux-gnu/gcc (Debug)	14m 1s
x86_64-apple-darwin/clang (Debug)	28m 21s
x86_64-apple-darwin/clang (Release)	47m 42s
aarch64-pc-windows-msvc/msvc (Debug)	26m 28s
x86_64-pc-windows-msvc/msvc (Debug)	31m 15s
JIT with tail calling interpreter	4m 38s
aarch64-apple-darwin/clang (Release)	14m 54s
JIT without optimizations (Debug)	4m 7s
aarch64-unknown-linux-gnu/gcc (Release)	7m 38s
i686-pc-windows-msvc/msvc (Debug)	30m 53s
Interpreter (Debug)	17m 8s
aarch64-apple-darwin/clang (Debug)	15m 17s
i686-pc-windows-msvc/msvc (Release)	14m 37s
	5h 15m 12s

Provide feedback